If you need help interpreting any portion of the FOIA or regulations made under it, case law may be useful. Researching case law will be essential if your FOIA request is denied and you decide to appeal the denial.
One way to look for case law interpreting the FOIA is to review the annotations following 5 U.S.C. § 552 in an annotated version of the United States Code:
Another way to search for cases is to look in West's Federal Practice Digest [KF127 .F31 1989] or Westlaw's Key Number System. Most FOIA cases are summarized under the topic Records (326), key numbers 30-68 (public access). Below are key numbers for some major issues: